When humans began farming 6,000 years ago, during what scientists call the Anthropocene, the natural distribution of species was disrupted. This has had a lasting impact on ecosystems today.
Wild bees are disappearing from many major agricultural areas across the United States, including California’s Central Valley, the Midwest’s corn belt and the Mississippi River valley. To help examine the problem. University of Vermont (UVM) researchers have created the first national map of bee populations.
A recent analysis of the fecal matter of three different species of baleen whales, by Harvard and the Bigelow Laboratory for Ocean Sciences, found intriguing similarities between the ocean giants and hippos and large, toothy predators.
Animals' poop plays a key role in keeping the planet fertile. However, when large animals go extinct the natural cycling of nutrients from deep ocean waters to high mountainous areas is significantly reduced, researchers revealed in a new study.
After studying deep-core sediment and creating maps of the Chesapeake region stretching back millions of years, researchers say that a long-held theory that Washington, D.C. is sinking faster toward the sea than most other coastal U.S. cities, and an existing theory that ice-sheet melt contributed to this--are both true.